Spring-tire for vehicle-wheels.



A. B. MCQUEEN.

SPRING TIRE FOR VEHICLE WHEELS.

APPLICATION FILED F234, 1911,

1,01 5,451 Patented Jan. 23, 1912.

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ARCHIBALD B. MCQUEEN, OF DUNNELLON, FLORIDA.

SPRING-TIRE FOR VEHICLE-WHEELS Specification of Letters Patent. Application filed February 4, 1911. Serial No, 506,553.

PatentedJain23,1912.

and State of Florida, have invented new and useful Improvements in Spring-Tires' for Vehicle-VVheels, of which the following is a specification.

The purpose of the present invention is the provision of a yielding tire for vehicle wheels and more particularly for automobiles and mechanically propelled road matures,

.terial such as is commonly formation oi pneumatic tires.

chines, the purpose being to supply a the which is resilient to absorb shock and vibration and yet practically puncture-prooflso that a vehicle having its wheels equipped with a set of tires may with impunity be driven. over rough roads without danger of placing the machine out of commission by reason of deflation of the tires.

.Theinvention consists of the novel .fea

details of construction and combinawhich hereinafter willbe more illustrated in the acand pointed out In tion of parts, particularly set forth, companying drawing, the appended claim.

Referring to the drawing, of the specification, Figure 1 shows a portion of the tire partially-in central longitudinal section. Fig. 2 1s a cross section on the line 410-42 of Fig. 1. Fig. 3 is a detail view of aportion of the protective casing. Fig. 4 is a detail view of the hinge joint between adjacent sections of the protective casing. Fig. 5 is a sectional view of the parts shown in Fig. 4;.

Corresponding and like parts are referred to in the followingdescription, and indicated inall the views of the drawing, by the same reference charact rs.

The casing of the tire is indicated at]. and may be of rubber or other flexible niaemployed in the Within the casing '1. is located a protective casing 2,

which com 'n-lses a plurality of sections,

plates or scales hingedly connected and of such imamttion as to cover the inner Walls of the casing 1. A series of coil springs 3 arelocated within the casing and havea radial arrangement, said springs being approximately of conical form andv arranged with their smaller ends pointing )utward. A securing ring 4 is provided at intervals in its circumferential length with projections 13, which form seats to receive the laps the inner part forming a part sides of the invention appertains,

inner ends of the springs 3 and hold the latter in place. The securing ring a is of wedge form in cross section so as to bind against the ends of the elements comprising the protectivecasing and hold thesame in place. The rim of the wheel comprises two parts 5 and 6, one of which is made detacln able to admit of placing the tire in position or removing it from the rim. Bolts 7 connect the parts 5 and 6. The rim maybe attached to the spokes 8 in any manner. The detachable member 5 of the rim has an inwardly extending flange 14:, which over of the fixed portion .6 of the rim. The parts l t and 6 are connected by bolts 9 which pass through openings therein and through the securing ring 4.

I The protective casing 2 is formed of a plurality of transverse elements 15- each, comprising a number of plates or sections.

These transverse elements taper toward opposite ends and the end sections have hooks 12 which engage under projecting edge portions of-the securing ring 4 and prevent possible slipping of the parts. The transverse elements are hingedly connected by ,means of'their middle sections'so as to sustain the circumferential fixed position; The butts 18 of the hinge joints face inward and. have a limited outward movement so ast-o preserve the cross sectional outline of the tire. The sections or plates of the transverse elements at the the middle plates or sections are disconnected at their-edges, but are hinged at their ends so as to sustain the transverse strain and hold the parts in place. The protective casing is of such formation as to practically cover every part of the inner strain and'hold the parts in wall of the outer casing 1, thereby; preventing any sharp object from penetrating the interior of the tireev'en though it'should pierce the casing 1. The longitudinal edge portions of thecasing 1 are inwardly bent and secured by lacing 17. The side flanges of the parts 5 and 6 0f the wheel rim have their inner walls outwardly flared and the sides of the securing ring 4 correspondingly the edge portions a wedging action.

taken in connection with the accompanying drawing, the advantages of the constructionand of the method of operation will be readily ap parent to'those skilled in the art to which and while I have flared, thereby securing ot the casings 1 and 2 by From the foregoing descriptlon,

described the principle of operation of the invention, together with the device which I now consider to be the embodiment there of, I desire to have it understood that the device shown is merely illustrative, and that such changes may be made when desired as are within the scope of the claim appended hereto.

The hinges connecting the lateral sections admit of the joints moving outward, but limit inward movement. This construction allows compression of the t1re when sustaining the load and maintains the normal shape of the tire when the springs 3 are at "the limit of their movement.

Having thus described the invention what claimed as new, is In combmation a Vehicle wheel rim having outer flanges, a flexible casing, a second casing arranged within the flexible casing and comprising a plurality of metal plates hingedly connected to one another, the metal plates having inner projections, a securing ring for confining the casings and having outer projections, and conical springs arranged betwe'enthe securing'ring and the outer portion of the inner casing and having their ends fitted to the projections of the said securing ring and the inner casing.

In testimony whereof I afiix my in presence oftwo witnesses.

AROHIBALD B. MCQUEEN. WVitnesses:

M. RULEIM, J. M. BARKSDALE.

signature to the rim 

